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Microsoft has released an SDK for Windows Phone 7.8 – aka the last ever update for Windows Phone 7 handsets, which have been orphaned by the company’s platform shift to Windows Phone 8 (built on a different kernel). The SDK release was announced yesterday by Microsoft on the Windows Phone developer blog.
Redmond describes the SDK as an “optional update” for developers — noting that it adds two new Windows Phone 7.8 emulator images to the developer’s existing SDK installation. “These two emulator images should enable you to fully test how your Windows
(IT news)

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